CN110293239A - The processing method of medium seed diesel engine rack driving cog wheel bore system - Google Patents
The processing method of medium seed diesel engine rack driving cog wheel bore system Download PDFInfo
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- CN110293239A CN110293239A CN201910648778.6A CN201910648778A CN110293239A CN 110293239 A CN110293239 A CN 110293239A CN 201910648778 A CN201910648778 A CN 201910648778A CN 110293239 A CN110293239 A CN 110293239A
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- hole
- diesel engine
- special accessories
- axis
- wheel bore
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B35/00—Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machines; Use of auxiliary equipment in connection with such methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses a kind of processing methods of medium seed diesel engine rack driving cog wheel bore system, comprising the following steps: 1) upward by diesel engine stand bottom surface, processes each shelves main bearing hole with the first special accessories；2) upward by diesel engine stand top surface, each shelves injection cam axis hole is processed with the second special accessories；3) each shelves exhaust camshaft aperture is processed with the second special accessories；4) actual position coordinate of injection cam axis hole and exhaust camshaft aperture is found out using third special accessories, and calculates the coordinate value in carrier gear hole, then processes carrier gear hole with third special accessories；5) on the basis of carrier gear hole and main bearing hole, the coordinate value of center tooth wheel bore is calculated, processes center tooth wheel bore with third special accessories.Not only non-cutting time is short by the present invention, and work efficiency is high, and labor intensity is low, and clamping and centering accumulated error are small, and mismachining tolerance is small, ensure that the precision of location dimension between each hole, to ensure that the processing quality of product.
Description
Technical field
The present invention relates to a kind of numerical-control processing method of medium seed diesel engine rack, in especially a kind of medium seed diesel engine rack
The processing method of driving cog wheel bore system, belongs to Computerized Numerical Control processing technology field.
Background technique
The driving cog wheel bore system processing of Marine Medium-speed Diesel Engine rack is one of key points and difficulties of frame processing.Driving cog
Wheel bore system is mainly used for installing driving gear set, and crankshaft drives driving gear set, drives exhaust cam shaft by driving gear set
It works with injection cam axis, driving gear set is different from the backlash of crankshaft toothed wheel, cam shaft gear, positioning rule between each hole
It is very little associated with each other, therefore the position dimension required precision of driving cog wheel bore system is very high, more causes the difficulty of processing.Such as Fig. 1 institute
Show, diesel engine stand driving cog wheel bore owner will include multi gear main bearing hole 1, multi gear injection cam axis hole 2, multi gear exhaust cam
3, one grades of carrier gear holes 4 of axis hole and one grade of center tooth wheel bore 5.Traditional driving cog wheel bore system using numerical control horizontal boring-milling bed into
Row processing, when processing, need to carry out multiple clamping positioning, and multiple stations are found benchmark accurately for several times and could be completed, and not only non-cutting time is long,
Working efficiency is low, large labor intensity, and clamping and centering accumulated error are big, and process generate error, often without
Method guarantees that the location dimension precision between each hole, product processing quality are extremely unstable.
Summary of the invention
The object of the present invention is to provide a kind of medium seed diesel engine racks easy to operate, high in machining efficiency, mismachining tolerance is small
The processing method of driving cog wheel bore system.
The present invention is achieved by the following technical programs:
A kind of processing method of medium seed diesel engine rack driving cog wheel bore system, comprising the following steps:
1) machining spindle bearing bore: upward by diesel engine stand bottom surface, Set and Positioning is on digital control plane milling and boring machine workbench, simultaneously
First special accessories is installed on machine tool chief axis, starts lathe, successively processes each shelves main bearing hole using the first special accessories；
2) it processes injection cam axis hole: diesel engine stand being overturn 180 °, makes diesel engine stand top surface upward, and by diesel engine machine
Frame Set and Positioning is changed to the second special accessories on platen, while by the first special accessories on machine tool chief axis, starting
Lathe is successively processed respectively using the second special accessories from rack free end to flywheel extreme direction on the basis of main bearing hole axis
Shelves injection cam axis hole；
3) it processes exhaust camshaft aperture: keeping diesel engine stand station constant, the second special accessories is rotated 180 °, with base bearing
On the basis of hole, each shelves exhaust camshaft aperture is successively processed from rack free end to flywheel extreme direction；
4) it processes carrier gear hole: keeping diesel engine stand station constant, the second special accessories is changed to third special accessories,
The actual position coordinate of injection cam axis hole and exhaust camshaft aperture is found out first with third special accessories, and passes through trigonometric function
The coordinate value in carrier gear hole is calculated, then processes carrier gear hole with third special accessories；
5) it processes center tooth wheel bore: keeping diesel engine stand station constant, on the basis of carrier gear hole and main bearing hole, pass through
Trigonometric function calculates the coordinate value of center tooth wheel bore, processes center tooth wheel bore with third special accessories, so far completes in rack
The processing of driving cog wheel bore system.
The purpose of the present invention can also be further realized by following technical measures.
The processing method of medium seed diesel engine rack driving cog wheel bore above-mentioned system, wherein in each step, the main bearing hole,
Injection cam axis hole, exhaust camshaft aperture, the axis of carrier gear hole and center tooth wheel bore are vertical with machine tool chief axis axis respectively.
The processing method of medium seed diesel engine rack driving cog wheel bore above-mentioned system, wherein in step 2 or step 3), second
Special accessories can two-way dress knife.
The processing method of medium seed diesel engine rack driving cog wheel bore above-mentioned system wherein in step 4) and step 5), is passed a bridge
Gear hole and the coordinate value of center tooth wheel bore are calculated by numerically-controlled machine tool, main bearing hole, injection cam axis hole and exhaust cam shaft
The actual position coordinate in hole is input value.
The processing method of medium seed diesel engine rack driving cog wheel bore above-mentioned system, wherein when processing, the first special accessories
Axis is overlapped with each shelves main bearing hole axis respectively, the axis of the second special accessories respectively with each shelves injection cam axis hole and each shelves
Exhaust cam shaft axially bored line is overlapped, and the axis of third special accessories is overlapped with carrier gear hole and intermediate gear axially bored line respectively.
The present invention processes rack driving cog wheel bore system using digital control plane milling and boring machine, and whole process only needs two
The processing of driving cog wheel bore system can be completed in two stations of secondary clamping, and not only non-cutting time is short, and work efficiency is high, labor intensity
It is low, and clamping and centering accumulated error are small, and mismachining tolerance is small, ensure that the precision of location dimension between each hole, to guarantee
The processing quality of product.Wherein carrier gear hole and center tooth wheel bore are positioned by the automatic operation coordinate value of lathe, are kept away
Exempt from error caused by human factor, further improves two hole positioning accuracies.
The advantages and features of the present invention will be illustrated and explained by the non-limitative illustration of preferred embodiment below,
These embodiments only provide as an example referring to attached drawing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of diesel engine stand driving cog wheel bore system；
Fig. 2 is the structural schematic diagram of machining spindle bearing bore of the present invention；
Fig. 3 is the structural schematic diagram of present invention processing injection cam axis hole.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
The processing method of medium seed diesel engine rack driving cog wheel bore system, comprising the following steps:
1) machining spindle bearing bore 1: as shown in Fig. 2, upward by 6 bottom surface of diesel engine stand, Set and Positioning is in digital control plane milling and boring machine 7
Workbench on, and keep the axis of main bearing hole 1 in rack 6 vertical with machine tool chief axis axis, while installing on machine tool chief axis
First special accessories 8 starts lathe, successively processes each shelves main bearing hole 1 using the first special accessories 8, and when processing, first is dedicated
The axis of attachment 8 is overlapped with each 1 axis of shelves main bearing hole respectively；
2) it processes injection cam axis hole 2: as shown in figure 3, diesel engine stand 6 is overturn 180 °, making 6 top surface court of diesel engine stand
On, and by 6 Set and Positioning of diesel engine stand on platen, the axis and machine tool chief axis axis of injection cam axis hole 2 hang down
Directly, while by the first special accessories 8 on machine tool chief axis it is changed to the second special accessories 9.On the basis of the axis of main bearing hole 1,
The position of centering injection cam axis hole 2, start lathe, using the second special accessories 9 from 6 free end of rack to flywheel extreme direction according to
Each shelves injection cam axis hole 2 of secondary processing, the axis of the second special accessories 9 axis with each shelves injection cam axis hole 2 respectively when processing
Line is overlapped, and the second special accessories 9 can two-way dress knife；
3) it processes exhaust camshaft aperture 3: keeping 6 station of diesel engine stand constant, at this time the axis and lathe of exhaust camshaft aperture 3
Main-shaft axis is vertical, the second special accessories 9 is rotated 180 °, and move to 3 side of rack exhaust camshaft aperture, with main bearing hole 1
On the basis of, 3 position of centering exhaust camshaft aperture starts lathe, successively processes each shelves row from 6 free end of rack to flywheel extreme direction
Gas camshaft hole 3, when processing, the axis of the second special accessories 9 is overlapped with the axis of each shelves exhaust camshaft aperture 3 respectively；
4) it processes carrier gear hole 4: keeping 6 station of diesel engine stand constant, at this time the axis and machine tool chief axis in carrier gear hole 4
Axis is vertical, and the second special accessories 9 is changed to third special accessories.Since injection cam axis hole 2 and exhaust camshaft aperture 3 add
When can generate smaller error during work, therefore process carrier gear hole 4, injection cam axis is found out first with third special accessories
The actual position coordinate in hole 2 and exhaust camshaft aperture 3, eliminating error influences, and calculates carrier gear hole 4 by trigonometric function
Coordinate, then process carrier gear hole 4, when processing, the axis and carrier gear of third special accessories with third special accessories
The axis in hole 4 is overlapped；
5) it processes center tooth wheel bore 5: still keeping 6 station of diesel engine stand constant, at this time the axis and lathe of center tooth wheel bore 5
Main-shaft axis is vertical.On the basis of carrier gear hole 4 and main bearing hole 1, the seat of center tooth wheel bore 5 is calculated by trigonometric function
Scale value processes center tooth wheel bore 5 with third special accessories, when processing, the axis and 5 axis of center tooth wheel bore of third special accessories
It is overlapped, so far completes the processing of 6 upper transfer gear hole system of rack.
Wherein in step 4) and step 5), the coordinate value of carrier gear hole 4 and center tooth wheel bore 5 passes through numerically-controlled machine tool meter
It calculates, the actual position coordinate of main bearing hole 1, injection cam axis hole 2 and exhaust camshaft aperture 3 is input value.
In addition to the implementation, the present invention can also have other embodiments, all to use equivalent substitution or equivalent transformation shape
At technical solution, be all fallen within the protection domain of application claims.
Claims (5)
1. a kind of processing method of medium seed diesel engine rack driving cog wheel bore system, which comprises the following steps:
1) machining spindle bearing bore: upward by diesel engine stand bottom surface, Set and Positioning is on digital control plane milling and boring machine workbench, simultaneously
First special accessories is installed on machine tool chief axis, starts lathe, successively processes each shelves main bearing hole using the first special accessories；
2) it processes injection cam axis hole: diesel engine stand being overturn 180 °, makes diesel engine stand top surface upward, and by diesel engine machine
Frame Set and Positioning is changed to the second special accessories on platen, while by the first special accessories on machine tool chief axis, starting
Lathe is successively processed respectively using the second special accessories from rack free end to flywheel extreme direction on the basis of main bearing hole axis
Shelves injection cam axis hole；
3) it processes exhaust camshaft aperture: keeping diesel engine stand station constant, the second special accessories is rotated 180 °, with base bearing
On the basis of hole, each shelves exhaust camshaft aperture is successively processed from rack free end to flywheel extreme direction；
4) it processes carrier gear hole: keeping diesel engine stand station constant, the second special accessories is changed to third special accessories,
The actual position coordinate of injection cam axis hole and exhaust camshaft aperture is found out first with third special accessories, and passes through trigonometric function
The coordinate value in carrier gear hole is calculated, then processes carrier gear hole with third special accessories；
5) it processes center tooth wheel bore: keeping diesel engine stand station constant, on the basis of carrier gear hole and main bearing hole, pass through
Trigonometric function calculates the coordinate value of center tooth wheel bore, processes center tooth wheel bore with third special accessories, so far completes in rack
The processing of driving cog wheel bore system.
2. the processing method of medium seed diesel engine rack driving cog wheel bore as described in claim 1 system, it is characterised in that: each step
In, the main bearing hole, injection cam axis hole, exhaust camshaft aperture, carrier gear hole and center tooth wheel bore axis respectively with
Machine tool chief axis axis is vertical.
3. the processing method of medium seed diesel engine rack driving cog wheel bore as described in claim 1 system, it is characterised in that: step 2
Or in step 3), the second special accessories can two-way dress knife.
4. the processing method of medium seed diesel engine rack driving cog wheel bore as described in claim 1 system, it is characterised in that: step 4)
In step 5), the coordinate value of carrier gear hole and center tooth wheel bore is calculated by numerically-controlled machine tool, main bearing hole, injection cam axis
The actual position coordinate of hole and exhaust camshaft aperture is input value.
5. the processing method of medium seed diesel engine rack driving cog wheel bore as described in claim 1 system, it is characterised in that: processing
When, the axis of the first special accessories is overlapped with each shelves main bearing hole axis respectively, the axis of the second special accessories respectively with each shelves
Injection cam axis hole and each shelves exhaust cam shaft axially bored line are overlapped, the axis of third special accessories respectively with carrier gear hole and in
Between gear hole axis be overlapped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910648778.6A CN110293239B (en) | 2019-07-18 | 2019-07-18 | Method for processing transmission gear hole system of medium-speed diesel engine frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910648778.6A CN110293239B (en) | 2019-07-18 | 2019-07-18 | Method for processing transmission gear hole system of medium-speed diesel engine frame |
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| CN110293239A true CN110293239A (en) | 2019-10-01 |
| CN110293239B CN110293239B (en) | 2020-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910648778.6A Active CN110293239B (en) | 2019-07-18 | 2019-07-18 | Method for processing transmission gear hole system of medium-speed diesel engine frame |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112658308A (en) * | 2020-12-15 | 2021-04-16 | 广西玉柴机器股份有限公司 | Method for machining camshaft holes from two ends by using measuring head pin correcting holes |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112658308A (en) * | 2020-12-15 | 2021-04-16 | 广西玉柴机器股份有限公司 | Method for machining camshaft holes from two ends by using measuring head pin correcting holes |
| CN112658308B (en) * | 2020-12-15 | 2022-06-24 | 广西玉柴机器股份有限公司 | Method for machining camshaft holes from two ends by using measuring head pin correcting holes |
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| CN110293239B (en) | 2020-05-12 |
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Address after: 212211 No. 402, Changjiang Road, Zhenjiang City, Jiangsu Province Patentee after: China Shipbuilding Power Zhenjiang Co.,Ltd. Address before: 402 Changjiang Road, Runzhou District, Zhenjiang City, Jiangsu Province Patentee before: CSSC MARINE POWER Co.,Ltd. |
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